backset

noun, verb — 3 senses

noun

Etymology From back + set.

A check; a relapse; a discouragement; a setback.

Whatever is thrown back in its course, such as water.

Slackwater, or the backset caused by the overflow.(Can we date this quote?), Harper's Magazine:

verb

Etymology From back + set.

US, Western, Especially To plow again in the fall; said of prairie land broken up in the spring.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.